|
|
@ -19,14 +19,499 @@
|
|
|
|
* 32 bpp compression
|
|
|
|
* 32 bpp compression
|
|
|
|
*/
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
|
|
|
RDP 6.0 Bitmap Compression
|
|
|
|
|
|
|
|
http://msdn.microsoft.com/en-us/library/cc241877.aspx
|
|
|
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
|
|
#include "libxrdp.h"
|
|
|
|
#include "libxrdp.h"
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#define FLAGS_RLE 0x10
|
|
|
|
|
|
|
|
#define FLAGS_NOALPHA 0x20
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#define LLOG_LEVEL 1
|
|
|
|
|
|
|
|
#define LLOGLN(_level, _args) \
|
|
|
|
|
|
|
|
do { if (_level < LLOG_LEVEL) { g_writeln _args ; } } while (0)
|
|
|
|
|
|
|
|
#define LHEXDUMP(_level, _args) \
|
|
|
|
|
|
|
|
do { if (_level < LLOG_LEVEL) { g_hexdump _args ; } } while (0)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
/* split ARGB */
|
|
|
|
|
|
|
|
static int APP_CC
|
|
|
|
|
|
|
|
fsplit4(char *in_data, int start_line, int width, int e,
|
|
|
|
|
|
|
|
char *alpha_data, char *red_data, char *green_data, char *blue_data)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
#if defined(L_ENDIAN)
|
|
|
|
|
|
|
|
int alpha;
|
|
|
|
|
|
|
|
int red;
|
|
|
|
|
|
|
|
int green;
|
|
|
|
|
|
|
|
int blue;
|
|
|
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
int index;
|
|
|
|
|
|
|
|
int out_index;
|
|
|
|
|
|
|
|
int pixel;
|
|
|
|
|
|
|
|
int cy;
|
|
|
|
|
|
|
|
int *ptr32;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
cy = 0;
|
|
|
|
|
|
|
|
out_index = 0;
|
|
|
|
|
|
|
|
while (start_line >= 0)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
ptr32 = (int *) (in_data + start_line * width * 4);
|
|
|
|
|
|
|
|
index = 0;
|
|
|
|
|
|
|
|
#if defined(L_ENDIAN)
|
|
|
|
|
|
|
|
while (index + 4 <= width)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
pixel = *ptr32;
|
|
|
|
|
|
|
|
ptr32++;
|
|
|
|
|
|
|
|
alpha = (pixel >> 24) & 0x000000ff;
|
|
|
|
|
|
|
|
red = (pixel >> 16) & 0x000000ff;
|
|
|
|
|
|
|
|
green = (pixel >> 8) & 0x000000ff;
|
|
|
|
|
|
|
|
blue = (pixel >> 0) & 0x000000ff;
|
|
|
|
|
|
|
|
pixel = *ptr32;
|
|
|
|
|
|
|
|
ptr32++;
|
|
|
|
|
|
|
|
alpha |= (pixel >> 16) & 0x0000ff00;
|
|
|
|
|
|
|
|
red |= (pixel >> 8) & 0x0000ff00;
|
|
|
|
|
|
|
|
green |= (pixel << 0) & 0x0000ff00;
|
|
|
|
|
|
|
|
blue |= (pixel << 8) & 0x0000ff00;
|
|
|
|
|
|
|
|
pixel = *ptr32;
|
|
|
|
|
|
|
|
ptr32++;
|
|
|
|
|
|
|
|
alpha |= (pixel >> 8) & 0x00ff0000;
|
|
|
|
|
|
|
|
red |= (pixel >> 0) & 0x00ff0000;
|
|
|
|
|
|
|
|
green |= (pixel << 8) & 0x00ff0000;
|
|
|
|
|
|
|
|
blue |= (pixel << 16) & 0x00ff0000;
|
|
|
|
|
|
|
|
pixel = *ptr32;
|
|
|
|
|
|
|
|
ptr32++;
|
|
|
|
|
|
|
|
alpha |= (pixel << 0) & 0xff000000;
|
|
|
|
|
|
|
|
red |= (pixel << 8) & 0xff000000;
|
|
|
|
|
|
|
|
green |= (pixel << 16) & 0xff000000;
|
|
|
|
|
|
|
|
blue |= (pixel << 24) & 0xff000000;
|
|
|
|
|
|
|
|
*((int*)(alpha_data + out_index)) = alpha;
|
|
|
|
|
|
|
|
*((int*)(red_data + out_index)) = red;
|
|
|
|
|
|
|
|
*((int*)(green_data + out_index)) = green;
|
|
|
|
|
|
|
|
*((int*)(blue_data + out_index)) = blue;
|
|
|
|
|
|
|
|
out_index += 4;
|
|
|
|
|
|
|
|
index += 4;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
while (index < width)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
pixel = *ptr32;
|
|
|
|
|
|
|
|
ptr32++;
|
|
|
|
|
|
|
|
alpha_data[out_index] = pixel >> 24;
|
|
|
|
|
|
|
|
red_data[out_index] = pixel >> 16;
|
|
|
|
|
|
|
|
green_data[out_index] = pixel >> 8;
|
|
|
|
|
|
|
|
blue_data[out_index] = pixel >> 0;
|
|
|
|
|
|
|
|
out_index++;
|
|
|
|
|
|
|
|
index++;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
for (index = 0; index < e; index++)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
alpha_data[out_index] = alpha_data[out_index - 1];
|
|
|
|
|
|
|
|
red_data[out_index] = red_data[out_index - 1];
|
|
|
|
|
|
|
|
green_data[out_index] = green_data[out_index - 1];
|
|
|
|
|
|
|
|
blue_data[out_index] = blue_data[out_index - 1];
|
|
|
|
|
|
|
|
out_index++;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
start_line--;
|
|
|
|
|
|
|
|
cy++;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
return cy;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
/* split RGB */
|
|
|
|
|
|
|
|
static int APP_CC
|
|
|
|
|
|
|
|
fsplit3(char *in_data, int start_line, int width, int e,
|
|
|
|
|
|
|
|
char *red_data, char *green_data, char *blue_data)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
#if defined(L_ENDIAN)
|
|
|
|
|
|
|
|
int red;
|
|
|
|
|
|
|
|
int green;
|
|
|
|
|
|
|
|
int blue;
|
|
|
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
int index;
|
|
|
|
|
|
|
|
int out_index;
|
|
|
|
|
|
|
|
int pixel;
|
|
|
|
|
|
|
|
int cy;
|
|
|
|
|
|
|
|
int *ptr32;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
cy = 0;
|
|
|
|
|
|
|
|
out_index = 0;
|
|
|
|
|
|
|
|
while (start_line >= 0)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
ptr32 = (int *) (in_data + start_line * width * 4);
|
|
|
|
|
|
|
|
index = 0;
|
|
|
|
|
|
|
|
#if defined(L_ENDIAN)
|
|
|
|
|
|
|
|
while (index + 4 <= width)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
pixel = *ptr32;
|
|
|
|
|
|
|
|
ptr32++;
|
|
|
|
|
|
|
|
red = (pixel >> 16) & 0x000000ff;
|
|
|
|
|
|
|
|
green = (pixel >> 8) & 0x000000ff;
|
|
|
|
|
|
|
|
blue = (pixel >> 0) & 0x000000ff;
|
|
|
|
|
|
|
|
pixel = *ptr32;
|
|
|
|
|
|
|
|
ptr32++;
|
|
|
|
|
|
|
|
red |= (pixel >> 8) & 0x0000ff00;
|
|
|
|
|
|
|
|
green |= (pixel << 0) & 0x0000ff00;
|
|
|
|
|
|
|
|
blue |= (pixel << 8) & 0x0000ff00;
|
|
|
|
|
|
|
|
pixel = *ptr32;
|
|
|
|
|
|
|
|
ptr32++;
|
|
|
|
|
|
|
|
red |= (pixel >> 0) & 0x00ff0000;
|
|
|
|
|
|
|
|
green |= (pixel << 8) & 0x00ff0000;
|
|
|
|
|
|
|
|
blue |= (pixel << 16) & 0x00ff0000;
|
|
|
|
|
|
|
|
pixel = *ptr32;
|
|
|
|
|
|
|
|
ptr32++;
|
|
|
|
|
|
|
|
red |= (pixel << 8) & 0xff000000;
|
|
|
|
|
|
|
|
green |= (pixel << 16) & 0xff000000;
|
|
|
|
|
|
|
|
blue |= (pixel << 24) & 0xff000000;
|
|
|
|
|
|
|
|
*((int*)(red_data + out_index)) = red;
|
|
|
|
|
|
|
|
*((int*)(green_data + out_index)) = green;
|
|
|
|
|
|
|
|
*((int*)(blue_data + out_index)) = blue;
|
|
|
|
|
|
|
|
out_index += 4;
|
|
|
|
|
|
|
|
index += 4;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
while (index < width)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
pixel = *ptr32;
|
|
|
|
|
|
|
|
ptr32++;
|
|
|
|
|
|
|
|
red_data[out_index] = pixel >> 16;
|
|
|
|
|
|
|
|
green_data[out_index] = pixel >> 8;
|
|
|
|
|
|
|
|
blue_data[out_index] = pixel >> 0;
|
|
|
|
|
|
|
|
out_index++;
|
|
|
|
|
|
|
|
index++;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
for (index = 0; index < e; index++)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
red_data[out_index] = red_data[out_index - 1];
|
|
|
|
|
|
|
|
green_data[out_index] = green_data[out_index - 1];
|
|
|
|
|
|
|
|
blue_data[out_index] = blue_data[out_index - 1];
|
|
|
|
|
|
|
|
out_index++;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
start_line--;
|
|
|
|
|
|
|
|
cy++;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
return cy;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
static int APP_CC
|
|
|
|
|
|
|
|
fdelta(char *in_plane, char *out_plane, int cx, int cy)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
char delta;
|
|
|
|
|
|
|
|
char *src8;
|
|
|
|
|
|
|
|
char *dst8;
|
|
|
|
|
|
|
|
int index;
|
|
|
|
|
|
|
|
int jndex;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
g_memcpy(out_plane, in_plane, cx);
|
|
|
|
|
|
|
|
for (jndex = cy - 2; jndex >= 0; jndex--)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
src8 = in_plane + jndex * cx;
|
|
|
|
|
|
|
|
dst8 = out_plane + jndex * cx;
|
|
|
|
|
|
|
|
for (index = 0; index < cx; index++)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
delta = src8[cx] - src8[0];
|
|
|
|
|
|
|
|
if (delta & 0x80)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
delta = (((~delta) + 1) << 1) - 1;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
else
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
delta = delta << 1;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
dst8[cx] = delta;
|
|
|
|
|
|
|
|
src8++;
|
|
|
|
|
|
|
|
dst8++;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
static int APP_CC
|
|
|
|
|
|
|
|
fout(int collen, int replen, char *colptr, struct stream *s)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
int code;
|
|
|
|
|
|
|
|
int lcollen;
|
|
|
|
|
|
|
|
int lreplen;
|
|
|
|
|
|
|
|
int cont;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
LLOGLN(10, ("fout: collen %d replen %d", collen, replen));
|
|
|
|
|
|
|
|
cont = collen > 13;
|
|
|
|
|
|
|
|
while (cont)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
lcollen = collen;
|
|
|
|
|
|
|
|
if (lcollen > 15)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
lcollen = 15;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
code = lcollen << 4;
|
|
|
|
|
|
|
|
out_uint8(s, code);
|
|
|
|
|
|
|
|
out_uint8a(s, colptr, lcollen);
|
|
|
|
|
|
|
|
colptr += lcollen;
|
|
|
|
|
|
|
|
collen -= lcollen;
|
|
|
|
|
|
|
|
cont = collen > 13;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
cont = (collen > 0) || (replen > 0);
|
|
|
|
|
|
|
|
while (cont)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
lreplen = replen;
|
|
|
|
|
|
|
|
if ((collen == 0) && (lreplen > 15))
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
/* big run */
|
|
|
|
|
|
|
|
if (lreplen > 47)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
lreplen = 47;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
LLOGLN(10, ("fout: big run lreplen %d", lreplen));
|
|
|
|
|
|
|
|
replen -= lreplen;
|
|
|
|
|
|
|
|
code = ((lreplen & 0xF) << 4) | ((lreplen & 0xF0) >> 4);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
else
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
if (lreplen > 15)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
lreplen = 15;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
replen -= lreplen;
|
|
|
|
|
|
|
|
if (lreplen < 3)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
collen += lreplen;
|
|
|
|
|
|
|
|
lreplen = 0;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
code = (collen << 4) | lreplen;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
out_uint8(s, code);
|
|
|
|
|
|
|
|
out_uint8a(s, colptr, collen);
|
|
|
|
|
|
|
|
colptr += collen + lreplen;
|
|
|
|
|
|
|
|
collen = 0;
|
|
|
|
|
|
|
|
cont = replen > 0;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
static int APP_CC
|
|
|
|
|
|
|
|
fpack(char *plane, int cx, int cy, struct stream *s)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
char *ptr8;
|
|
|
|
|
|
|
|
char *colptr;
|
|
|
|
|
|
|
|
char *lend;
|
|
|
|
|
|
|
|
char *holdp;
|
|
|
|
|
|
|
|
int jndex;
|
|
|
|
|
|
|
|
int collen;
|
|
|
|
|
|
|
|
int replen;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
LLOGLN(10, ("fpack:"));
|
|
|
|
|
|
|
|
holdp = s->p;
|
|
|
|
|
|
|
|
for (jndex = 0; jndex < cy; jndex++)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
LLOGLN(10, ("line start line %d cx %d cy %d", jndex, cx, cy));
|
|
|
|
|
|
|
|
ptr8 = plane + jndex * cx;
|
|
|
|
|
|
|
|
LHEXDUMP(10, (ptr8, cx));
|
|
|
|
|
|
|
|
lend = ptr8 + (cx - 1);
|
|
|
|
|
|
|
|
colptr = ptr8;
|
|
|
|
|
|
|
|
if (colptr[0] == 0)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
collen = 0;
|
|
|
|
|
|
|
|
replen = 1;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
else
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
collen = 1;
|
|
|
|
|
|
|
|
replen = 0;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
while (ptr8 < lend)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
if (ptr8[0] == ptr8[1])
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
replen++;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
else
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
if (replen > 0)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
if (replen < 3)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
collen += replen + 1;
|
|
|
|
|
|
|
|
replen = 0;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
else
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
fout(collen, replen, colptr, s);
|
|
|
|
|
|
|
|
colptr = ptr8 + 1;
|
|
|
|
|
|
|
|
replen = 0;
|
|
|
|
|
|
|
|
collen = 1;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
else
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
collen++;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
ptr8++;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
/* end of line */
|
|
|
|
|
|
|
|
fout(collen, replen, colptr, s);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
return (int) (s->p - holdp);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
static int APP_CC
|
|
|
|
|
|
|
|
foutraw3(struct stream *s, int bytes, int header,
|
|
|
|
|
|
|
|
char *red_data, char *green_data, char *blue_data)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
out_uint8(s, header);
|
|
|
|
|
|
|
|
out_uint8a(s, red_data, bytes);
|
|
|
|
|
|
|
|
out_uint8a(s, green_data, bytes);
|
|
|
|
|
|
|
|
out_uint8a(s, blue_data, bytes);
|
|
|
|
|
|
|
|
/* pad if no RLE */
|
|
|
|
|
|
|
|
out_uint8(s, 0x00);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
static int APP_CC
|
|
|
|
|
|
|
|
foutraw4(struct stream *s, int bytes, int header,
|
|
|
|
|
|
|
|
char *alpha_data, char *red_data, char *green_data, char *blue_data)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
out_uint8(s, header);
|
|
|
|
|
|
|
|
out_uint8a(s, alpha_data, bytes);
|
|
|
|
|
|
|
|
out_uint8a(s, red_data, bytes);
|
|
|
|
|
|
|
|
out_uint8a(s, green_data, bytes);
|
|
|
|
|
|
|
|
out_uint8a(s, blue_data, bytes);
|
|
|
|
|
|
|
|
/* pad if no RLE */
|
|
|
|
|
|
|
|
out_uint8(s, 0x00);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
/* returns the number of lines compressed */
|
|
|
|
int APP_CC
|
|
|
|
int APP_CC
|
|
|
|
xrdp_bitmap32_compress(char *in_data, int width, int height,
|
|
|
|
xrdp_bitmap32_compress(char *in_data, int width, int height,
|
|
|
|
struct stream *s, int bpp, int byte_limit,
|
|
|
|
struct stream *s, int bpp, int byte_limit,
|
|
|
|
int start_line, struct stream *temp_s,
|
|
|
|
int start_line, struct stream *temp_s,
|
|
|
|
int e)
|
|
|
|
int e, int flags)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
char *alpha_data;
|
|
|
|
|
|
|
|
char *red_data;
|
|
|
|
|
|
|
|
char *green_data;
|
|
|
|
|
|
|
|
char *blue_data;
|
|
|
|
|
|
|
|
char *salpha_data;
|
|
|
|
|
|
|
|
char *sred_data;
|
|
|
|
|
|
|
|
char *sgreen_data;
|
|
|
|
|
|
|
|
char *sblue_data;
|
|
|
|
|
|
|
|
int alpha_bytes;
|
|
|
|
|
|
|
|
int red_bytes;
|
|
|
|
|
|
|
|
int green_bytes;
|
|
|
|
|
|
|
|
int blue_bytes;
|
|
|
|
|
|
|
|
int cx;
|
|
|
|
|
|
|
|
int cy;
|
|
|
|
|
|
|
|
int max_bytes;
|
|
|
|
|
|
|
|
int total_bytes;
|
|
|
|
|
|
|
|
int header;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
LLOGLN(10, ("xrdp_bitmap32_compress:"));
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
header = flags & 0xFF;
|
|
|
|
|
|
|
|
cx = width + e;
|
|
|
|
|
|
|
|
salpha_data = temp_s->data;
|
|
|
|
|
|
|
|
sred_data = salpha_data + cx * height;
|
|
|
|
|
|
|
|
sgreen_data = sred_data + cx * height;
|
|
|
|
|
|
|
|
sblue_data = sgreen_data + cx * height;
|
|
|
|
|
|
|
|
alpha_data = sblue_data + cx * height;
|
|
|
|
|
|
|
|
red_data = alpha_data + cx * height;
|
|
|
|
|
|
|
|
green_data = red_data + cx * height;
|
|
|
|
|
|
|
|
blue_data = green_data + cx * height;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
if (header & FLAGS_NOALPHA)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
cy = fsplit3(in_data, start_line, width, e,
|
|
|
|
|
|
|
|
sred_data, sgreen_data, sblue_data);
|
|
|
|
|
|
|
|
if (header & FLAGS_RLE)
|
|
|
|
{
|
|
|
|
{
|
|
|
|
|
|
|
|
fdelta(sred_data, red_data, cx, cy);
|
|
|
|
|
|
|
|
fdelta(sgreen_data, green_data, cx, cy);
|
|
|
|
|
|
|
|
fdelta(sblue_data, blue_data, cx, cy);
|
|
|
|
|
|
|
|
out_uint8(s, header);
|
|
|
|
|
|
|
|
red_bytes = fpack(red_data, cx, cy, s);
|
|
|
|
|
|
|
|
green_bytes = fpack(green_data, cx, cy, s);
|
|
|
|
|
|
|
|
blue_bytes = fpack(blue_data, cx, cy, s);
|
|
|
|
|
|
|
|
total_bytes = red_bytes + green_bytes + blue_bytes;
|
|
|
|
|
|
|
|
if (1 + total_bytes > byte_limit)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
/* failed */
|
|
|
|
|
|
|
|
LLOGLN(0, ("xrdp_bitmap32_compress: too big, rgb "
|
|
|
|
|
|
|
|
"bytes %d %d %d total_bytes %d cx %d cy %d byte_limit %d",
|
|
|
|
|
|
|
|
red_bytes, green_bytes, blue_bytes,
|
|
|
|
|
|
|
|
total_bytes, cx, cy, byte_limit));
|
|
|
|
return 0;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
max_bytes = cx * cy * 3;
|
|
|
|
|
|
|
|
if (total_bytes > max_bytes)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
/* raw is better */
|
|
|
|
|
|
|
|
LLOGLN(10, ("xrdp_bitmap32_compress: too big, rgb "
|
|
|
|
|
|
|
|
"bytes %d %d %d total_bytes %d cx %d cy %d max_bytes %d",
|
|
|
|
|
|
|
|
red_bytes, green_bytes, blue_bytes,
|
|
|
|
|
|
|
|
total_bytes, cx, cy, max_bytes));
|
|
|
|
|
|
|
|
init_stream(s, 0);
|
|
|
|
|
|
|
|
foutraw3(s, cx * cy, FLAGS_NOALPHA, sred_data,
|
|
|
|
|
|
|
|
sgreen_data, sblue_data);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
else
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
foutraw3(s, cx * cy, FLAGS_NOALPHA, sred_data,
|
|
|
|
|
|
|
|
sgreen_data, sblue_data);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
else
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
cy = fsplit4(in_data, start_line, width, e,
|
|
|
|
|
|
|
|
salpha_data, sred_data, sgreen_data, sblue_data);
|
|
|
|
|
|
|
|
if (header & FLAGS_RLE)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
fdelta(salpha_data, alpha_data, cx, cy);
|
|
|
|
|
|
|
|
fdelta(sred_data, red_data, cx, cy);
|
|
|
|
|
|
|
|
fdelta(sgreen_data, green_data, cx, cy);
|
|
|
|
|
|
|
|
fdelta(sblue_data, blue_data, cx, cy);
|
|
|
|
|
|
|
|
out_uint8(s, header);
|
|
|
|
|
|
|
|
alpha_bytes = fpack(alpha_data, cx, cy, s);
|
|
|
|
|
|
|
|
red_bytes = fpack(red_data, cx, cy, s);
|
|
|
|
|
|
|
|
green_bytes = fpack(green_data, cx, cy, s);
|
|
|
|
|
|
|
|
blue_bytes = fpack(blue_data, cx, cy, s);
|
|
|
|
|
|
|
|
max_bytes = cx * cy * 4;
|
|
|
|
|
|
|
|
total_bytes = alpha_bytes + red_bytes + green_bytes + blue_bytes;
|
|
|
|
|
|
|
|
if (1 + total_bytes > byte_limit)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
/* failed */
|
|
|
|
|
|
|
|
LLOGLN(0, ("xrdp_bitmap32_compress: too big, argb "
|
|
|
|
|
|
|
|
"bytes %d %d %d %d total_bytes %d cx %d cy %d byte_limit %d",
|
|
|
|
|
|
|
|
alpha_bytes, red_bytes, green_bytes, blue_bytes,
|
|
|
|
|
|
|
|
total_bytes, cx, cy, byte_limit));
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
if (total_bytes > max_bytes)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
/* raw is better */
|
|
|
|
|
|
|
|
LLOGLN(10, ("xrdp_bitmap32_compress: too big, argb "
|
|
|
|
|
|
|
|
"bytes %d %d %d %d total_bytes %d cx %d cy %d max_bytes %d",
|
|
|
|
|
|
|
|
alpha_bytes, red_bytes, green_bytes, blue_bytes,
|
|
|
|
|
|
|
|
total_bytes, cx, cy, max_bytes));
|
|
|
|
|
|
|
|
init_stream(s, 0);
|
|
|
|
|
|
|
|
foutraw4(s, cx * cy, 0, salpha_data, sred_data,
|
|
|
|
|
|
|
|
sgreen_data, sblue_data);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
else
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
foutraw4(s, cx * cy, 0, salpha_data, sred_data,
|
|
|
|
|
|
|
|
sgreen_data, sblue_data);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
return cy;
|
|
|
|
|
|
|
|
}
|
|
|
|